// wmitesterDlg.cpp : implementation file
//

#include "stdafx.h"
#include "wmitester.h"
#include "wmitesterDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CwmitesterDlg dialog




CwmitesterDlg::CwmitesterDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CwmitesterDlg::IDD, pParent)
  , m_pAcpiEventSink(NULL)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CwmitesterDlg::DoDataExchange(CDataExchange* pDX)
{
  CDialog::DoDataExchange(pDX);
  DDX_Control(pDX, IDC_LIST_MSG, m_cntlLBMsg);
}

BEGIN_MESSAGE_MAP(CwmitesterDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
  ON_WM_CREATE()
  ON_WM_DESTROY()
  ON_BN_CLICKED(IDC_BTN_GET, &CwmitesterDlg::OnBnClickedBtnGet)
END_MESSAGE_MAP()


// CwmitesterDlg message handlers

BOOL CwmitesterDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CwmitesterDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CwmitesterDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CwmitesterDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


int CwmitesterDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
  if (CDialog::OnCreate(lpCreateStruct) == -1)
    return -1;

  // TODO:  Add your specialized creation code here
  if ( !m_oWmiHandler.initCOMAndSecurity(COINIT_MULTITHREADED) )
  {
    AfxMessageBox( TEXT("initialize COM and Security failed !") );
    return -1;
  }

  if ( m_oWmiHandler.connectToNamespace( TEXT("ROOT\\CIMV2") ) != WMI_HANDLER_RTCODE_OK )
  {
    AfxMessageBox( TEXT("connect to namespace failed !") );
    return -1;
  }
  
  m_pAcpiEventSink = new CACPIEventSink(GetSafeHwnd());

  ULONG ulRet = m_oWmiHandler.registerEventSink( TEXT("SELECT * FROM __InstanceCreationEvent WITHIN 1 ")
                                            TEXT("WHERE TargetInstance ISA 'Win32_Process'"), m_pAcpiEventSink );
  if (ulRet != WMI_HANDLER_RTCODE_OK)
  {
    AfxMessageBox( TEXT("register ACPI event sink failed !") );
    return -1;
  }

  return 0;
}

void CwmitesterDlg::OnDestroy()
{
  CDialog::OnDestroy();

  // TODO: Add your message handler code here
  if (m_pAcpiEventSink != NULL)
    m_pAcpiEventSink->Release();
}

void CwmitesterDlg::OnBnClickedBtnGet()
{
  // TODO: Add your control notification handler code here
  HRESULT hres;

  IEnumWbemClassObject* pEnumerator = NULL;
  ULONG ulRet = m_oWmiHandler.execQuery( _bstr_t(TEXT("SELECT * FROM Win32_Processor")), &pEnumerator );
  if ( ulRet != WMI_HANDLER_RTCODE_OK )
  {
    m_cntlLBMsg.AddString(TEXT("ExecQuery failed ! "));
    return;               // Program has failed.
  }
  else
  { 
    IWbemClassObject *pclsObj;
    ULONG uReturn = 0;

    while (pEnumerator)
    {
      hres = pEnumerator->Next(WBEM_INFINITE, 1, 
          &pclsObj, &uReturn);

      if(0 == uReturn)
      {
          break;
      }

      VARIANT vtProp;

      // Get the value of the Name property
      hres = pclsObj->Get(TEXT("Caption"), 0, &vtProp, 0, 0);
      m_cntlLBMsg.AddString(vtProp.bstrVal);
      VariantClear(&vtProp);
    }
  }
}

LRESULT CwmitesterDlg::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
  // TODO: Add your specialized code here and/or call the base class
  if (message == WM_MYWMIMSG)
  {
    m_cntlLBMsg.AddString(TEXT("Get a WMI message !"));
    
    switch(wParam)
    {
    case WMIMSG_INDICATE:
      m_cntlLBMsg.AddString(TEXT("It is a WMI indicate message !"));
      break;
    case WMIMSG_STATUS_COMPLETE:
      m_cntlLBMsg.AddString(TEXT("It is a WMI complete message !"));
      break;
    case WMIMSG_STATUS_IN_PROGRESS:
      m_cntlLBMsg.AddString(TEXT("It is a WMI in progress message !"));
      break;
    }
  }

  return CDialog::DefWindowProc(message, wParam, lParam);
}
